citibank for ipad. easier banking. standard at citibank. mother nature's cool like that. mobile check deposit. easier banking. standard at citibank. >>> tomorrow night, "48 hours" begins its 25th season with a murder mystery that went unsolved for years. the victim was a couple in kansas and richard schlesinger reports that "48 hours" was the first to identify the suspect, later arrested. >> this arrest in the parking lot of a fast-food restaurant in duncan, oklahoma, was the result of ten years of investigation. both amateur and professional. dana chandler will have to stand trial for double homicide. >> she has a very complicated role in my life. because she is my mom, and she is my dad's killer. >> hawley's father, mike cisco, and his fiancee, karen harkness, were shot to death in 2002. from day one, h anch inaley and brother knew who did it. >> i know my mom did it. >> i don't want it to be her. >> reporter: her mother had stalked their father and karen for years. showing up unexpectedly at their homes, driving past family gatherings and calling incessantly. >> she wo